Detachable external water ballast bags for sailboats



FIG. 1 is a perspective view of the detachable external water ballast bags for sailboats;

FIG. 2 is a side view thereof;

FIG. 3 is a front view thereof; and,

FIG. 4 is a rear view thereof. 

The ornamental design for a detachable external water ballast bags for sailboats, as shown. 